Study of the enzyme treatments effect on the pilling behaviour of knitted wool fabrics

Two knitted wool fabrics with the same cover factor, yarn count and twist were used our experiment. The only variable introduced was the mean diameter of the wools, 19.2?m and 25.6 ?m. The aim of the work was to evaluate the effect of proteolytic enzyme treatment on the pilling behaviour of fabrics, and in particular on the yarn structure with different fibre diameters. The two fabric samples were treated with different concentrations of proteolytic enzyme, and then the pilling behaviour was measured by using the pilling box test. The results obtained show that the proteolytic enzyme, within given levels of concentration, improves the pilling behaviour of the fabrics. © AUTEX.